blackamoor vs ziggaboo

blackamoor

noun
  • A stylized Negro. 

  • A blackamoor slave, a blackamoor servant; and hence any slave, servant, inferior, or child. 

ziggaboo

noun
  • A nigger, negro; synonym of jigaboo. 

How often have the words blackamoor and ziggaboo occurred in a corpus of books? (source: Google Ngram Viewer )